Telephone hand set.



R. R..IRELAN D & A. F. I. GiLsqN.

TELEPHONE HAND SET.

APPLIGATION FILED APR. 1, 1913.

Patented Oct. 14, 1913.

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BOY Rt IRELAND, OF EAST ORANGE, AND ALBERT F. GILSOBL OF CLUSTER, NEVT JERSEY, ASSIGNORS T0 WESTERN ELECTRIC GO'MPANY, OF NEW YORK, N. Y., A

CORPORATION OF ILLINOIS.

TELEPHONE HAND SE'I.

To all whom t may concern: Be it known that we, Roi R. lnaLANp and ALBERT F. F. GiLsoN, citizens of the United States, residing at East Orange, in the county of Essex and State of New Jersey, and at cluster, in the county of Bergen and State of New Jersey, respectively, have invented a certain new and useful Improve ment in Telephone Hand Sets, of which the following is a full, 'clear,,concise, and exact description.

This invention relates to telephone hand sets and has for its object to provide a device of this class of few, simple and inex? pensive parts,- which parts may be easily manufactured and readil assembled.

In accordance with this invention the parts of the hand set are made up for the most part of stamped and molded parts of simple design, one of the features being the provision of a main support for the part which is so formed as to support the transmitter and receiver at the proper angle when in use and to constitute three sides of an inclosure in which the circuit connecting parts are mounted. t

Another feature of this invention relates to the contact supporting blocks which are formed free of molded-in parts, and are so constructed that the terminals may be readily secured thereto.

()ther features of this invention are the details of construction and assembly of parts, as will hereinafter nore fully. appear.

In the drawings illustrating this invention-Figure 1 is a view in side elevation with a part in section of a set embodying this invention; Fig. 2 is a view in front elevation with parts broken away and parts removed of a device embodying this invention;

' Fig. 3 is a view in perspective of parts constitutin the handle of a set made in accordance with this invention; and Fig. his a detail perspective view of a mount ng block constituting one feature of this invention.

As shown in the drawings, there is provided a mounting plate comprising a back ortion 5 constituting a support for mountmg blocks and having end portions 6 and? with angular extensions 8 and 9 thereon for supporting a transmitter 10 and a receiver 11. A cover comprising a top member 15 Specification of Letters Patent. m nw 1 19 3',

Application filed April 1, 1913. Serial No. 758,214.

and side members 16 and 17 is adapted to be secured to the mounting plate by "means of screws extending through said top mem'-, her and engaging screw-threaded studs 18, 18 secured to the back portion 5 and to form with said portions 5 and the end portionsti and 7 a complete inclosure.

Secured to the inner face-of the back or tion 5 are two insulating blocks 20 an 21 each carrying two pairs-of stationary contact lugs 22, 22 and 23, 23. shown each of the blocks 20 arid 21 is rectangular in shape and isprovided with two openings 24 and- 25.- Located in oppositehsides of the openings 24 and 25 are metal nuts 26 and 27 for screws 28, 28 passing through the sides of said mounting blocks 20 and-21'to' secure the contact lugs 22, 22 and 23,123theret0. Screw-threaded apertures 30, 30 in the sides of the insulating blocks 29 and 21 receive terminal" screws 31, 31. which retain said stationary contact lugs 22, 22 and. 23, 23 against rotation and receive terminal clips secured to conductors 35, 35 forming the circuit connections of the device.

' Mounted upon each of the blocks 20 and 21 is a contact-closing spring 36 normally in engagement with the upper stationary contact lugs 22, 22 but arranged to be moved spring 36 at the upper end of the hand set is \normally used for signaling and is operated-by a cylindrical button 37, the inner end of which rests upon said spring, the outer end thereof being reduced in diameter and extending outwardly through an opening 38 in the top member 15 of the cover in position to be actuated by the user of the set. The contact-closing spring 36 at the lower end of the set controls the talking circuit of the instrument and is operated by means of a rec- I 'tangular push member 4L0 mounted upon the free end of a spring 41, the opposite end of which is secured to the inner face of the top member 15 of the cover. The rectangular push member is located in position to be engaged bythe digits of the user when the device is held in position for talking. Each contact vided through the right-angled end portion 6 through which a telephone cord 48 may be led.

The main supporting member and the cover areeach formed of a single piece of sheet metal stamped into shape and the contact springs 22, 22 and 23,23, as Well as the c0ntact=closing parts, are all stamped parts,

while the supporting blocks are merely molded into shape Without molded-in parts. The set is'tlius composed of parts which may be formed in the simplest and most economical manner possible and may be easily assembled into a compact and durable structure. Furthermore, by reason of the fact that there are no molded-1n parts in the mounting blocks, any of the parts thereof may be easily replaced without replacing the entire block.

e claim:

1. In a telephoneliand-set, the combination with a transmitter and a receiver, of a supporting member therefor having a back portion and two end portions, a cover therefor forming with said supporting member a complete inclosure, and spring mounting blocks carried bly said supporting member.

-2. In a telep one hand-set, the combination with a transmitter and a receiver, of a supporting. member therefor comprising a metal stamping having two end portions, spring mounting bloc-ks carried by said back portion, and a cover comprising a stamped member forming with said back portion and said end portions a complete inclosure for said spring mounting blocks.

3. In a telephone hand-set, the combinaa back portion and tion with a transmitter and a receiver, of a support therefor comprising a metal stamping having a back portion and two end por tions, spring mounting blocks carried by said back portion, and a metal stamping comprising atop portion and two side portions completing With said support an inclosure for said mounting blocks.

4. In a'telephone-hand-set, the combination with a transmitter and a receiver, of a support, and a plunger member for operating said springs flexibly supported upon the interior of said ,cover and extending therethrough.

6. In a telephone hand-set, the combination with a transmitter and a receiver, of a support therefor, insulating blocks remov- -ably mounted upon said support, switch springs removably mounted upon said lnsulating blocks, a removable cover for said spring-carrying blocks, and spring-actuating means carried by said'cover.

In Witness whereof, we hereunto subscribe our names this 27th day of March ROY R. IRELAND. v ALBERT F. F. GILSON. Witnesses:

WAUIER F. HOFFMAN,

F. P. MOINTOSH. 

